Loom.



PATENTBD MAY 22, 1906. P. B. VICTORY.

LOOM.

APPLICATION FILED APR.26,1905.

2 SHEETS-SHEET 2.

l P- I Il!! i.

TI' ENKEY.'

PATRICK E. VICTORY, OF MANVILLE, RHODE ISLAND.

LOOM.

Speccation of Letters Patent.

Patented May 22, 1906.

Application filed April 26, 1905. Serial No. 257,437.

To a/ZZ whom it may concern; v

Be it known that I, PATRICK E. VICTORY, a citizen of the United States, residing at Manville, in the county of Providence and State of Rhode Island., have invented a new and useful Improvement in Looms, of which the following is a specification.

This invention has reference to an improvement in looms, and more particularly to an improvement in cloth-take-up-release mechanism for looms.

Looms having weft-thread stop-motions are constructed to stop on the breaking of a weft-thread that is to say, the power is stopped; but the loom by its momentum will continue to run one or more picks, thus causing a thin place in the cloth by the loss of the weft or filling threads.

The object oi my invention is to prevent the occurrence of thin places in weaving cloth by the loss of one or more weft or filling threads, and I accomplish this object by providing the loom with a release mechanism which, cooperating with the take-up mecha ism, operates on the starting oi' the loom to release the take-up mechanism and allow the cloth-beam to run back the equivalent of the number of picks lost in the stopping of the loom.

My invention consists in the peculiar and novel construction of a release mechanism operatively connected with the weft stopmotion, the shipper-lever, and the take-upv mechanism of a loom, whereby on the breaking or exhausting oi a weft-thread the takeup mechanism is released and the cloth-beam run back one or more picks, as required, thereby preventing thin places in weaving cloth, as will be more fully set forth hereinafter.

Figure 1 is a iront view of a loom provided with my improved release mechanism, showing enough ofthe loom to clearly locate my invention. Fig. 2 is an enlarged detail view showing a portion oi the left side trame supporting the breast-beam, the pawls and ratchet of the take-up mechanism, and the left-hand end of my improved release mechanism. view oi the right-hand end of the release mechanism looking down on the same. Fig. 4 is an enlarged detail sectional view taken on line X X of Fig. 3, showing the actuatinglatch on the shipper-lever in its normal position in full lines and in the position it would Fig. 3 is an enlarged detail sectional.

assume in passing the operating-lever when the shipper-lever is released to stop the loom in broken lines.. Fig. 5 is a detail sectional view similar to Fig. 4, showing the position the actuating-latch would assume to raise the operating-lever on the return ci the shipperlever to its normal position in starting the loom; and Fig. 6 is an enlarged detail sectional view taken on line Y Y of Fig. 2

through the adjustable stop-pawl of the release mechanism. Fig. 7 1s an enlarged detail view showing a portion of the left side frame and the breast-beam, the pawls, the ratchet-gear, and the connection from the ratchet-gear to the sand-roll. Fig. 8 is an enlarged detail view showing a portion of' the right-hand side frame and the breast-beam, the rock-shaft, the vertical arm and operat- ,ing-lever mounted on the rock-shaft, the weighted bell-crank lever, and the shippinglever. Fig. 9 is an enlarged detail view of a portion of the lay-sword and the take-up lever, showing the connection between the two.

In the drawings, a indicates the breastbeam, a the right side frame, a2 the left side frame, b the weft fork slide, c the shipper-lever, and d part ot the take-up mechanism, of a loom. The slide l) carries the usual weft-fork (not shown) and is operated in the usual way on the breaking of a weft-thread to move the slide forward or toward the front of the breast beam a. The shipper-lever c is released in the usual way by the knock-oli bar (not shown) on the breaking of a weftthread and is thrown automatically to the right to stop the loom, The part of the takeup mechanism d shown in the dra vings consists of the ratchet-gear d', secured to the shaft d2, which connects, through a train of gears c c2 c3, to the sand-roll dT or cloth-beam d8 of the loom in the usual way. A lever d3 is pivotally secured to the outer end oi. the shaft d2 and has the pawl d4 pivotally secured to its upper end in a position to engage with the teeth on the ratchet-gear d as shown in Fig. 2. The lower end of the lever d3 is operatively connected to the lay-sword d5 ci' the loom in the usual way, as is shown in the drawings, by the link d6. The reciprocating movement of the lay-sword d5 transmits a reciprocating movement through the lever d3 to the pawl dt, which takes up one tooth on the ratchet-gear d for each pick oi the loom. When the loom is in its usual running condi- IOO tion, there is sufiicient tension on the warpthreads to run the cloth-beam back several picks when required.

.My improved release mechanism consists of a rock-shaft e, supported in bearings at each end on the front of the loom in a position to bring the shaft in front and slightly below the breast-beam a, as shown in Fig. l. A vertical arm e is secured to the shaft e in a position to engage with the forward end of the weft-fork slide t. A vertical stop-arm e2 is secured to the shaft e adjacent the arm e in a position to bear on the face of the breastbeam a when in its normal position. An operating-lever e3 is secured in a horizontal position to the right-hand end of the shaft e, the free end of the lever extending toward the rear of the loom, and apawl e4is secured to the lefthand end of the shaft e in a position to engage vwith the teeth of the ratchet-gear d and hold the take-up mechanism d from running back when the pawl d4 is on the back stroke. A bell-crank lever f, having the Weighted end f and the L-shaped end f2, (which extends toward the rear of the machine,) is pivotally secured to the front of the side frame a in a position for the weighted end f to be supported on the upper end of the stop-arm e2 and for the L-shaped end f2 to engage with the inner edge of the shipper-lever c, as shown in Fig. 1. A horizontal latch g, having the upper left-hand beveled surface g, the lower right-hand beveled surface g2, and the square vertical shank g3, is supported in the bearing g4 on the plate g5, and this plate is secured to the front of the shipper-lever c in a position for the latch g to engage with the free end of the operating-lever e3, as shown in Fig. 3. The latch g rests on the top of the bearing g4 in its normal position and has a free vertical movement. A stop-pawl 7L, consisting of a semicircular segment having the teeth h on its periphery, is pivotally secured to a stud 'h2 on a bracket h3, which in turn is secured to the side frame a2 in a position for the teeth h to engage with the teeth of the ratchet-gear d', as shown in Fig. 2. A plate h4, having the stop h5, is adjustably secured to the stud h2 back of the stop-pawl 7i by the set-bolt he", as shown in Fig. 6. The stop h5 is adjusted to allow the cloth-beam -to run back one or more picks, as required. An arm h? is pivotally secured at one end to the stud h2 between the bracket h3 and the plate h4, the free end of the arm extending toward the front of the loom'back of the pawls (Z4 and e4. A link hs is pivotally connected to the arm k7 and to the pawl e4, and a pin 71.9 is lsecured to the back of the pawl d4 in a position to engage with the free end ofthe arm k7, as shown ilp full lines in Fig. l and in broken lines in The ratchet-gear d revolves in the direction of the arrow, as shown in Fig. 2, in the moves the stop-pawl 7L out into its inoperative position away from the stop h5. In practice T nd that the momentum of different looms varies from one to four or iive picks after the power is stopped. The stop h5 is therefore adjusted to each loom to compensate for the number of mentum of the loom.

In the operation of my improved release mechanism the power of the loom is stopped on the breaking or exhausting of a weftthread through the weft-fork, weft-fork hammer, and knock-off bar in the usual way. This releases and throws the shipper-lever c automatically to the right and moves the weft-fork slide I) toward the front of the loom. The forward end of the slide t, engaging with the arm e', moves the arm e and the stoparm e2 forward and partly rotates the rockshaft e. This raises the operating-arm e3 picks lost by the mo- I into its operative position, allows the weighted end f of the bell-crank lever f to drop down between `the stop-arm e2 and the face of the breast-beam a and form a stop to hold the arm e3 in its operative position, and simultaneously raises the pawl e4 out of engagement with the teeth of the ratchet-gear d and through the link 71.8 brings the arm h? into operative engagement with the pin hg on the back of the pawl d4, as shown in broken lines in Fig. 2. The ratchet-gear d is now held by the pawl d4. The shipper-lever c in its outward movement brings the latch g into engagement with the operating-lever e3. The lower beveled surface g2 on the latch strikes the operating-lever e3 and the latch rides over the lever, as shown in broken lines in Fig. 4. The broken weft-thread is now pieced or replaced by a new weft-thread and the loom started by moving the shipper-lever c toward the loom into the position as shown in Fig. l. This movement of the shipper-lever brings the latch g again in to engagement with the operating-lever e3. The upper beveled surface g strikes the lever e3, passes under and by the lever, and raises the lever, as shown in Fig. 5. This upward movement of the operating-lever e3 rotates the rock-shaft e still farther and through the pawl et, the link hs, the arm k7, and the pin hsraises the pawl d4 out of engagement with the teeth on the ratchetgear d and releases the take-up mechanism. The ratchet-gear d through the tension of the warp-threads now revolves backward and allows the cloth on the cloth-beam'to run back the number of picks lost, and this operation is governed by the stop-pawl t engaging with the ratchet-gear d and allowing the ratchet-gear to move back only the number of teeth or picks required, which are limited by the stop-pawl h engaging with the stop h5. When the latch g has passed the operating-lever e3 in starting the loom, the shipper-lever c engages with the L-shaped end normal running condition of the loom. This f2 of the bell-crank lever f and raises the ICO weighted end f into its normal position. The stop-arm e2 now passesunder the weighted end f and the pawls C74 and e4 assume their normal operative position on the ratchetgear d', as shown in full lines in Fig. 2.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. In a loom, a release mechanism comprising a rock-shaft, a vertical arm on the rock-shaft adapted to engage with the weftfork slide, a horizontal arm on the rock-shaft, a latch on the shipper-lever adapted to raise the horizontal arm and partly rotate the rock-shaft, a pawl on the rock-'shaft engaging with the ratchet-gear of the take-up mechanism, the ratchet-gear, the take-up mechanism, means for connecting the pawl on the rock-shaft with the pawl of the take-up mechanism, and means for limiting the reverse movement of the ratchet-gear, whereby-on the starting of the loom the take-up mechanism of the loom is released and the cloth allowed to run back the equivalent of the number of picks lost, as described.

2. In avloom, a release mechanism comprising a rock-shaft, a vertical arm on the rock-shaft adapted to engage with the wefttork slide, a vertical stop-arm on the rockshaft adapted to bear on the face of the breastbeam, a weighted bell-crank lever adapted to engage with the vertical stop-arm and the shipper-lever, a horizontal arm on the rockshaft, a latch on the shipper-lever adapted to raise the horizontal arm and pivotally rotate the rock-shaft, a pawl on the rock-shaft engaging with the ratchet-gear of the takeup mechanism, the ratchet-gear, the take-up mechanism, the pawl of the take-up mechansm, means for connecting the pawl on the rock-shaft with the pawl of the take-up mechanism, and mechanism for limiting the reverse movement of the take-up mechanism, whereby on the starting of the loom the takeup mechanism of the loom is released and the cloth allowed to run back the equivalent of the number of picks lost, as described.

3. In a loom, a release mechanism comprising a rock-shaft, a vertical arm on the rock-shaft adapted to engage with the weftfork slide, a horizontal arm on the rock-shaft, a latch on the shipper-lever adapted to raise the horizontal arm and partly rotate the rocksha'ft, a pawl on the rock-shaft engaging with the ratchet-gear of the take-up mechanism of the loom, the ratchet-gear, a pivoted arm, a link connecting the pivoted arm with the pawl on the rock-shaft, the pawl on the rockshaft, the pawl of the take-up mechanism, a pin on the pawl of the take-up mechanism in a position to engage with the Jfree end of the pivoted arm, the stop-pawl, and adjustable stop, whereby on the starting of the loom the takeup mechanism of the loom is released and the cloth allowed to run back by the tension of the warp-threads the equivalent oi the number of weft-threads lost, as described.

4. In a loom, a release mechanism comprising a rock-shaft, a vertical arm on the rock-shaft adapted to engage with the weftfork slide, a vertical stop-arm on the rockshaft adapted to bear on the face of the breast-beam, a weighted bell-crank lever adapted to engage with the vertical stoparm and the shipper-lever, a horizontal arm on the rock-shaft, a latch on the shipperlever adapted to raise the horizontal arm andpartly rotate the rock-shaft, a pawl on the rock-shaft engaging with the ratchet-gear of the take-up mechanism, the ratchet-gear, the pawl of the take-up mechanism, means for connecting the pawl on the rock-shaft with the pawl of the take-up mechanism, the takeup mechanism, a segmental stop-pawl having teeth Aadapted to engage with the teeth of the ratchet-gear of' the take-up mechanism, and an adjustable stop adapted to engage with the stop-pawl to limit the movement of the pawl, whereby on the starting of the loom the take-up mechanism of the loom is released and the cloth allowed to run back by the tension of the warp-threads the equivalent of the number of weft-threads lost governed. by the stop-pawl, as described.

5. The combination with a loom having the weft-fork slide 7), the shipper-lever c and the take-up mechanism d, of' a release mechanism comprising a rock-shaft e, a vertical arm e on the rock-shaft adapted to engage with the weft-fork slide b, a vertical stop-arm e2 on the rock-shaft, a horizontal lever e3 on the rock-shaft extending toward the rear of the loom, a pawl e4 on the rock-shaft in a position to engage with the ratchet-gear of the take-up mechanism d, the take-up mechanism comprising the lever (Z3, the pawl d4, the gear d and the train of gears c c2 c3, a bell-crank lever f having the weighted end f and the L-shaped end f2 pivotally secured to the loom in a position for the end to be held by the stop-arm e2 and the end f2 to engage with the shipper-lever c, a latch g having the upper beveled surface g, the lower beveled surface g2 and the square shank g3 supported in the bearing g4 on the plate g5 which in turn is secured to the shipperlever c in a position'for the latch to engage with the lever e3, a segmental stop-pawl 71l having the teethh and pivotally secured to a stud h2 on a bracket 7b3 which in turn is secured to the loom in a position for the teeth 7L to engage with the teeth of the ratchet-gear of the take-up mechanism d, a plate 7b4 having the stop h5 and adjustably secured to the stud 7b2 by the set-bolt 7L", the stud 7b2, an arm 7N pivotally secured. to the stud 71,2, a link 71,8 pivotally connecting the arm k7 to the pawl e, and a pin hg secured to the pawl of the take-up mechanism in a position to engage with the free end of the arm 7U, whereby on IOO ITO

IIS

the starting oi the loom the take-up mechanism of the loom is released and the cloth allowed to run back the equivalent of the number of weft-threads lostI as described.

In a release mechanism for looms, the combination with a shipper-lever c of a rockshaft e, a vertical stop-arm e2 on the rockshaft, a horizontal lever e3 on the rock-shaft, a bell-crank lever f having the weighted end 1o f and the end f2 pivotally secured to the loom in a position for the end f to be supported on the arm e2 and the end f2 to engage with the shipper-lever c, a latch g having the upper beveled surface g', the lower beveled surface g2, and the shank g3 supported in the bearing g4 on the plate g5 which in turn is secured to the shipper-lever cin a po- -sition for the latch to engage with the lever e3, means for limiting the reverse movement of the take-up mechanism7 and means for operatively connecting the rock-shaft with the weft-fork slide and take-up mechanism of a loom, whereby on the starting of the loom the take-up mechanism of the loom is released and the cloth permitted to run back a predetermined number of picks, as de-l scribed.

ln testimony whereof I have signed my name to this speciiication in the presence of two subscribing witnesses.

PATRICK E. VICTORY. Witnesses:

ADA E. HAGERTY, J. H. MILLER, Jr. 

